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A247520 as a simple table

na(n)
12
28
313
417
522
626
730
833
941
1043
1146
1248
1355
1461
1563
1669
1774
1879
1983
2092
2199
22103
23108
24111
25115
26118
27125
28127
29133
30138
31144
32148
33153
34156
35158
36165
37170
38172
39176
40181
41184
42187
43189
44198
45204
46207
47212
48214
49216
50221
51227
52229
53235
54242
55248
56250

[2,8,13,17,22,26,30,33,41,43,46,48,55,61,63,69,74,
 79,83,92,99,103,108,111,115,118,125,127,133,138,
 144,148,153,156,158,165,170,172,176,181,184,187,
 189,198,204,207,212,214,216,221,227,229,235,242,
 248,250]